Seed introduction method of submerged plant vallisneria

Abstract

The invention discloses a seed introduction method of submerged plant vallisneria, which comprises the steps of collecting ripening fruits of the vallisneria, removing epicarp, obtaining seeds, washing the seeds with clean water within 0-24h to keep the seeds moist, transporting the collected seeds to a destination by a water-culture method, mixing the seeds transported to the destination with moist river sand, refrigerating the seeds at 0-10 DEG C, preserving the seeds by shading above 95% till complete darkness, ventilating and replenishing water frequently, maintaining a moisture content of each seed to be 35-50%, sowing the preserved seeds in a mixed matrix, a soil matrix or a yellow clay matrix, controlling a temperature to be 10-30 DEG C, the illumination intensity to be 800-3500LUX, and the everyday illumination time to be 10-12h, allowing the seeds to germinate and grow, obtaining germinated seedlings, planting the germinated seedlings in the mixed matrix with a 10-15cm water level for culturing, managing other conditions according to a convention, planting the vallisneria, and allowing the vallisneria to grow. The mixed matrix comprises the following components by total mass fraction: 20-40% of sand and 60-80% of soil. The seed introduction method is long in seed preservation time, high in germination rate, and high in emergence rate and planting survival rate.

Description

Technical field: [0001] The invention belongs to the technical field of plant propagation, and in particular relates to a method for introducing submerged plants Erythrina fraternis. Background technique: [0002] Vallisneria natans (Lour.) Hara belongs to the genus Vallisneria (Vallisneria L.), a herbaceous submerged plant of Hydrochardaceae, also known as flat grass, noodle grass, etc. The leaves are linear, green, thin and transparent, long Up to 2 meters; its plants are stemless, clustered, and emerald green. Because they contain more nutrients, they become good feed for raising freshwater fish, and have high economic value; they have strong adaptability and wide distribution range, and are widely distributed in Among the various water body ecosystems in the tropical, subtropical and temperate regions of the world, they are also distributed to varying degrees in the water bodies of the Chinese mainland; it has the advantages of strong tolerance, low light compensation po...

AI Technical Summary

Problems solved by technology

However, seed introduction usually has problems such as transportation difficulties, short storage time, intolerance to storage, low germination rate, low emergence rate, and low colonization survival rate. Therefore, it is necessary to solve the problems of transportation, preservation, germination, emergence and colonization of bitter grass seeds It is a key technology that must be solved for the introduction of bitter grass